Heating system.



E. E. GOLD.

HEATING SYSTEM. APPLIGATIONTILED PEB.21, 1911.

Patented 00112 11911.

' INVENTOR WITNESSES: (I

EDWARD a. cor

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ntnirr ne srsrnin.

Specification Letters Eatent.

Patented Oct. 24, ion.

Qriginal application filed Eecember :23, 1910, Serial $98,837. Dividedand this application filed February 21, 1911. Serial in. 610,056.

and will be found particularly desirable for use in heating surfacecars, especially trolley cars, althouglrit is not limited to such useand may be available for other as for instance in heating garages andother places where it is advisable that the source of heat should belocated outside of the apartment to be heated.

The invention consists in the provision of means whereby heat may berapidly and economically gcneraterfl from a heating pipe in which itradiated tor the heating of the apartment in w i" h it is situated.

The particularinvent ion forming the subject matter oi this applicationis principally a division of a prior application filed by me December.23, 1910, Serial No. 598,887.

lvly invention may well be employed in connection with the heatingsystem disclosed in my application for Patent No- 595,119, tiledDecember 1, 1910, although it is not arily limited thereto. y inventionhas for its object to provide an improved form of heater unit for use inconnection with the term of heating pipe Cllcl 59o desirable form inwhich my intuition may be embodied is illustrated in the accompanyingdrmvings wherein,

Figure 1 illustrates a longitudinal section of a. structure, as forinstance .a car body, which is applied heating pipes constructedarcordiug to my invention. 'Fig. 2 is a cross section of the same. Fig.3 is a vertical section of an extcnson on said heating i n' and oi aheater pocket formed therein ot th"= heater unit within the said pocket.Fig. is a cross section on the line ll-"*4 oi 3.

in my said prior application for patent filed December 1, 1910 a heatingpipe is employed which is only partially filled with vaporizable lirpiidand in which the balance of the pipe contains a. vacuum, and the saidpipe is sealed to prevent any breaking of vacuum. This permits the quickvaporg iaation oi? the liquid within the pipe upon .d in my saidamplication Serial No.

heat being applied to the end of the pipe containing said liquid, and arapid radiation of heat from the pipe is thereby obtained.

My present invention has for its object to induce a still more rapidvaporization of the liquid within thepipe, and a consequent more rapidradiation of the heat therefrom. In carrying my invention into effect Ipreferably employ a construction of heating pipe, such as illustratedin. my application of which this is a division, which consists informing at a point in said pipe, and preferably at the end of a verticalpart thereof which constitutes the lowest point in the pipe, a doublewalled extension, the inner wall of which is open to the atmosphere atits outer end and closed at its inner end forming a pocket for thereception of a heater. The thickness of the sheet of liquid containedbetween the two walls of the pipe at said extension is very slight andmay be as little as one-eighth of an inch. The inner wall of the pocketI preferably form of a thin tough metal which is a good heat conductor,and for which purpose I found copper to be admirable. Within the pocketthus formed I insert a heater unit, and the present invention isdirected. to the particular construction of such heating unit and themanner of assembling the same and holding it in place in the heatingpipe. The said heater unit is preferably so constructed that there shallbe no air insulation between the heater and the inner wall of thepocket. in

other words, I prefer to have close contact between the said parts andif any spaces should exist they are preferably filled with some suitableheat conducting substance as sand.

vention illustrated in the accompanying as having upper portions a whichare situated within the space to be heated, in this instance a trolleycar, and may be located beneath the seat and behind the riser a. which.is perforated to permit the passage of heat... This pipe as shown has areturn bend drawings, the heating pipe A is illustrated .said metaljacket is removable from the poor and a downward inclination terminatesin a part a which is conveniently located and extends below the carfioor. For the purpose of assisting the rapid radiation of heat from theheating pipe A, I may inclose the same in a coil of wire a", whichencircles the periphery of the radiating portion of the pipe within thetrolley car, as illustrated, and has, the effect of increasing therapidity of radiation from the pipe.

Upon the lower part a is formed an extension B which is illustrated asslightly enlarged and has secured to its outer end a tubular socket bwhich is suitably attached to the outer end of the extension B, as forinstance by brazingi and is closed on its inner end forming it tubularsocket which is adapted to receive the heater unit. The said extension Bis suitably secured to the por tion a of the heating pipe A, as forinstance by being screw-threaded thereon, as illustrated, although otherform of connection may be employed if desired.

The space between the outer wall which I shall designate Z) of the saidextension B and the inner wall 2') is filled with the liquid containedin the said lower part of the pipe, andtthe distance between the saidouter and innei: pipes is very slight and may be as little as one-eighthof an inch. An electric heater is placed Within the pocket produced bythe inner socket b and heats the liquid between the walls 2) 3/. Theparticular heater with which the present invention is concerned isdesignated as a whole by the letter D. This comprises an outer metaljacket al in which the heater proper is in sertcd and wherein it isclosely packed. The

pocket for the purpose of insert-ion of the heater or for repairing thesame, and fits closely within the inner wall This jacket (i may lgc ofsome good conducting metal as for instance copper. Within this jacket isplaced the heater constructed subtantially as illustrated in Fig. 3 of aporcelain core 0 upon which is wound a heating wire 0" which is suitablyinsulated, as for instance by being covered with a coating of enamel cwhich covers the said wires and insulates them one from another toprevent short circuit. The heate thus constructed is placed within themetal jacket (Z and packed therein with a su table heatconducting"substance 0* for iieh sand is well adapted. A cover Hit then be appliedto the said heater and heir i pl e by binding screws 0 0 and the .aid beinserted within the pocket to used by the inner wall (3, and screws inthen applied to hold the heater in place. circuit is completed throughthe metal rod and wire 0 and leadingdn wire The particular manner inwhich the heater unit is held in place, which is illustrated, i only oneof tightly packed therein and the cover 0" applied. thereto and suitablyheld in place the binding screws and that the sembled structure inaythen easily and conveniently be inserted within the pocket in theextension B and held therein by any suitable means. It will also beperceived that the resulting structure is one capable of inexpensiveconstruction, and it is remarkably efiicient in operation. It: is simpleand easy to repair and if necessary a heater may be removed for repairand a fresh one inserted in a short time and thereby the utility of therolling stock of railroads is not impaired by reason oi. any delay inrepairing the heating apparatus.

It is not to be inferred from the part-i011 lari't-y with which havedescribed the details of construction of the said heater that myinvention is necessarily limited to all of these details, as equivalentdevices may be,

substituted and changes made therein within the limits of theappendedclaims. i

What I claim is l. a heating system, a heating pipe hav' lg adoublewallcd-extension forming a heater pocket, a heater unit adapted tobe in sorted in said pocket comprising a metal jacket, an electricheater therein, and a filling of heat conducting material between saidjacket and said electric heater, and means for retaining said heaterunit in place.

2. In a heating system, a heating pipe partly filled vaporizable liquidand having a substantial vacuum in the balance of the pipe, said pipehaving a double-Walled extension forming a heater pocket, a heater unitadapted to be inserted in said pocket comprising a metal ja therein anda filling" neat conducting ma terial between said jacket and saidelectric heater, and means for said heater unit in place.

1 In a h sys'hni, ahc ting pipe having a re; 5 "pliOjQCbll'lg downwardlyand o v. 1th a vaporizable liquid, and hav ng; a substantial vacuum inthe balance of pipe, said extension pro-- vidid with. double walls, thelnner wall forming a pocket for the reception of a heater, and a heaterw hin saidpocket con1 prising closely fitting metal Jacket, an

at, an electric heater insulating core, electrical heating wiresthereon, an insulator for said wires and a filling of heat conductingmaterial. between said Wires and said jacket, and means for supportingsaid heater in said pocket.

,4. In a heating system, a heating pipe having a vertical part,projecting down-- wardly and partly tilled with a vaporizable.

liquid, and having a substantial vacuum in the balance of the pipe, saidextension provided with double walls, the inner wall forming a pocketfor the reception of a heater, and a heater within said pocketcomprising a closely fitting metal jacket, annisulating'core, electricalheating wires there ing an extension on the inner wall and se curingdevices attached to said extension and extending beneath the heater.

5. In a heating system, a heating pipe having a double-walled extensionforming a heater pocket, a heater unit adapted to be inserted in saidpocket comprising a metal jacket, and an electric heater therein, saidheating pipe, metal jacket and electric heater being in heat-conductingrelation to each other, whereby the heat of said heater is readilyconducted to said heating pipe;

6. In a-heating system, a-heatingpipe partly filled with a vaporizablefluid and having a substantial vacuum in the balance and formed with adouble-walled extension forming a heater pocketfa heater unit adapted tobe inserted in said pocket comprising a metal jacket,and an electricheater' therein, said heating pipe, metal jacket and 40 electric heaterbeing in heat conducting re lation to eachother, whereby the heat' ofsaid heater is readily conducted to said heating pipe.

7. In a heating system, a heating pipe having a double-walled extensionforming av heater pocket, a heater unit adapted to be inserted in saidpocket comprising a metal jacket fitting snugly in said pocket,and anelectric heater therein, and a tilllng ot heat 60 conducting materialbetween said heater and said jacket, whereby the heat of said heater isreadily conducted to said heating pipe.

8. In a heating system, a heating pipe having a double-walled extensionforming-a heater-pocket, a heater unit adapted to be inserted in saidpocket comprising a metal jacket, and an electric heater therein,comprising a core, a heating wire wound about said core and having itscoils insulated from each other, connections from said. wire to a sourceof electricity, said heating pipe, metal jacket and electric heaterbeing in heat conducting relation to each other, whereby the heat ofsaid heater is readily conducted to said heating pipe.

9..In a heating system, a heating pipe having a double-walled extensionrem0vably attached to said pipe and forming a heater pocket, a heaterunit adapted to be inserted in said pocket comprising'a metal jacket,and an electric heater therein, said heating pipe, metal jacket andelectric heater being in heat conducting relation to each other, wherebythe heat of said heater is readily conducted to said heating pipe.

10. In a heating system, a heating pipe having a double-walled extensionforming a heater pocket, a heater unit adapted to be insertcd'in saidpocket comprising a metal jacket, and an electric heater therein, saidheating pipe, metal jacket and electric heater being in heat conductingrelation to eachv other, wherebythe heat of said heater is readilyconducted to said heating pipe, and a cap attached to said extensionand'underlying said pocket and holding said heater in place. I

11. In a heating system, a heating pipe having a pocket formed therein,a heating unit adapted to be inserted in said pocket and to be removedtherefrom, comprising a jacket having its inner end closed, a heaterwithin said jacket and heat conducting filling between said heater andjacket of loose material, and means for closing the 'outer end of saidjacket and retaining said filling.

12. In a heating system, a heating pipe having a pocket formed therein,a heating unit adapted to be inserted in said pocket and to beremoved.theretrom,.comprising a jacket having its inner end closed, aheater within said jacket, a filling of loose heat conducting n'iaterialbetween said heater and said jacket, and means for retaining saidheating unit in place in said pocket, which close the outer end of saidjacket.

13. In a heating system, a heating pipe partly filled with a vaporizablefluid and having a substantial vacuum in the balance and havinga fluidchambert'or the collection of water of condensation, having a pocketformed therein, a vheating unit adapted to be inserted in said pocketand to be removed therefrom comprising a jacket, and a heater withinsaidjacket and removable therefrom.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

EDWARD E. GOLD.

W itnesscs HENRY M. TURK, 'lxroM'As F. VVALLAHH.

